The Colletotrichum acuatum bacterium is responsible for strawberries decaying. This type of fruit has previously been treated with azoxystrobin. However, after the reports on the reduction of its efficacy – associated with a mutation – the use of new fungicides such as natamycin has been considered.
Strains of Colletotrichum acuatum have been treated with natamycin, and the result has been proven to be highly effective. The effect of C. aquatum bacterium is reduced to low levels, similar to those obtained with treatments which include fludioxonil.
Natamycin has also been observed to have a unique action that is different from that of other fungicides previously used with strawberries and based on this research, it has already been registered in the United States as an immersion treatment for the decay of this type of fruit which is in such high demand commercially.